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1 /*
2  * Copyright © 2019 Intel Corporation
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a
5  * copy of this software and associated documentation files (the "Software"),
6  * to deal in the Software without restriction, including without limitation
7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8  * and/or sell copies of the Software, and to permit persons to whom the
9  * Software is furnished to do so, subject to the following conditions:
10  *
11  * The above copyright notice and this permission notice shall be included
12  * in all copies or substantial portions of the Software.
13  *
14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
15  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
17  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
19  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
20  * DEALINGS IN THE SOFTWARE.
21  */
22 
23 /**
24  * Macro and function definitions needed in order to use genxml.
25  *
26  * This should only be included in sources compiled per-generation.
27  */
28 
29 #include "iris_batch.h"
30 
31 #define __gen_address_type struct iris_address
32 #define __gen_user_data struct iris_batch
33 #define __gen_combine_address iris_combine_address
34 
35 static inline void *
__gen_get_batch_dwords(struct iris_batch * batch,unsigned dwords)36 __gen_get_batch_dwords(struct iris_batch *batch, unsigned dwords)
37 {
38    return iris_get_command_space(batch, dwords * sizeof(uint32_t));
39 }
40 
41 static inline struct iris_address
__gen_address_offset(struct iris_address addr,uint64_t offset)42 __gen_address_offset(struct iris_address addr, uint64_t offset)
43 {
44    addr.offset += offset;
45    return addr;
46 }
47 
48 static uint64_t
__gen_combine_address(struct iris_batch * batch,void * location,struct iris_address addr,uint32_t delta)49 __gen_combine_address(struct iris_batch *batch, void *location,
50                       struct iris_address addr, uint32_t delta)
51 {
52    uint64_t result = addr.offset + delta;
53 
54    if (addr.bo) {
55       iris_use_pinned_bo(batch, addr.bo,
56                          !iris_domain_is_read_only(addr.access), addr.access);
57       /* Assume this is a general address, not relative to a base. */
58       result += addr.bo->address;
59    }
60 
61    return result;
62 }
63 
64 static inline struct iris_address
__gen_get_batch_address(struct iris_batch * batch,void * location)65 __gen_get_batch_address(struct iris_batch *batch, void *location)
66 {
67    unreachable("Not supported by iris");
68 }
69 
70 #define __gen_address_type struct iris_address
71 #define __gen_user_data struct iris_batch
72 
73 #define __genxml_cmd_length(cmd) cmd ## _length
74 #define __genxml_cmd_length_bias(cmd) cmd ## _length_bias
75 #define __genxml_cmd_header(cmd) cmd ## _header
76 #define __genxml_cmd_pack(cmd) cmd ## _pack
77 #define __genxml_reg_num(cmd) cmd ## _num
78 
79 #include "genxml/genX_pack.h"
80 #include "genxml/gen_macros.h"
81 #include "genxml/genX_bits.h"
82 
83 /* CS_GPR(15) is reserved for combining conditional rendering predicates
84  * with GL_ARB_indirect_parameters draw number predicates.
85  */
86 #define MI_BUILDER_NUM_ALLOC_GPRS 15
87 #include "common/mi_builder.h"
88 
89 #define _iris_pack_command(batch, cmd, dst, name)                 \
90    for (struct cmd name = { __genxml_cmd_header(cmd) },           \
91         *_dst = (void *)(dst); __builtin_expect(_dst != NULL, 1); \
92         ({ __genxml_cmd_pack(cmd)(batch, (void *)_dst, &name);    \
93            _dst = NULL;                                           \
94            }))
95 
96 #define iris_pack_command(cmd, dst, name) \
97    _iris_pack_command(NULL, cmd, dst, name)
98 
99 #define _iris_pack_state(batch, cmd, dst, name)                   \
100    for (struct cmd name = {},                                     \
101         *_dst = (void *)(dst); __builtin_expect(_dst != NULL, 1); \
102         __genxml_cmd_pack(cmd)(batch, (void *)_dst, &name),       \
103         _dst = NULL)
104 
105 #define iris_pack_state(cmd, dst, name)                           \
106    _iris_pack_state(NULL, cmd, dst, name)
107 
108 #define iris_emit_cmd(batch, cmd, name) \
109    _iris_pack_command(batch, cmd, __gen_get_batch_dwords(batch, __genxml_cmd_length(cmd)), name)
110 
111 #define iris_emit_merge(batch, dwords0, dwords1, num_dwords)    \
112    do {                                                         \
113       uint32_t *dw = __gen_get_batch_dwords(batch, num_dwords); \
114       for (uint32_t i = 0; i < num_dwords; i++)                 \
115          dw[i] = (dwords0)[i] | (dwords1)[i];                   \
116       VG(VALGRIND_CHECK_MEM_IS_DEFINED(dw, num_dwords));        \
117    } while (0)
118 
119 #define iris_emit_reg(batch, reg, name)                                 \
120    for (struct reg name = {}, *_cont = (struct reg *)1; _cont != NULL;  \
121         ({                                                              \
122             uint32_t _dw[__genxml_cmd_length(reg)];                     \
123             __genxml_cmd_pack(reg)(NULL, _dw, &name);                   \
124             for (unsigned i = 0; i < __genxml_cmd_length(reg); i++) {   \
125                iris_emit_cmd(batch, GENX(MI_LOAD_REGISTER_IMM), lri) {  \
126                   lri.RegisterOffset   = __genxml_reg_num(reg);         \
127                   lri.DataDWord        = _dw[i];                        \
128                }                                                        \
129             }                                                           \
130            _cont = NULL;                                                \
131          }))
132 
133 
134 /**
135  * iris_address constructor helpers:
136  *
137  * When using these to construct a CSO, pass NULL for \p bo, and manually
138  * pin the BO later.  Otherwise, genxml's address handling will add the
139  * BO to the current batch's validation list at CSO creation time, rather
140  * than at draw time as desired.
141  */
142 
143 UNUSED static struct iris_address
ro_bo(struct iris_bo * bo,uint64_t offset)144 ro_bo(struct iris_bo *bo, uint64_t offset)
145 {
146    return (struct iris_address) { .bo = bo, .offset = offset,
147                                   .access = IRIS_DOMAIN_OTHER_READ };
148 }
149 
150 UNUSED static struct iris_address
rw_bo(struct iris_bo * bo,uint64_t offset,enum iris_domain access)151 rw_bo(struct iris_bo *bo, uint64_t offset, enum iris_domain access)
152 {
153    return (struct iris_address) { .bo = bo, .offset = offset,
154                                   .access = access };
155 }
156